linux-kernel - Re: [PATCH] scripts: merge_config: add strict mode to fail upon any redefinition

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Message-ID: <CAK7LNATRc4kJ9vvC1Y6xt88t8w-qKjdZMg_tK+9nZqHqa4bX_g@mail.gmail.com>
Date:   Sat, 24 Jul 2021 22:56:25 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Matthias Maennich <maennich@...gle.com>,
        open list <linux-kernel@...r.kernel.org>,
        "Cc: Android Kernel" <kernel-team@...roid.com>,
        linux-kbuild <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH] scripts: merge_config: add strict mode to fail upon any redefinition

On Thu, Jul 22, 2021 at 7:13 PM Lee Jones <lee.jones@...aro.org> wrote:
>
> Masahiro,
>
> On Fri, 21 May 2021 at 10:29, Lee Jones <lee.jones@...aro.org> wrote:
>>
>> On Wed, 2 Dec 2020 at 15:13, Matthias Maennich <maennich@...gle.com> wrote:
>>>
>>> When merging configuration fragments, it might be of interest to
>>> identify mismatches (redefinitions) programmatically. Hence add the
>>> option -s (strict mode) to instruct merge_config.sh to bail out in
>>> case any redefinition has been detected.
>>>
>>> With strict mode, warnings are emitted as before, but the script
>>> terminates with rc=1. If -y is set to define "builtin having
>>> precedence over modules", fragments are still allowed to set =m (while
>>> the base config has =y). Strict mode will tolerate that as demotions
>>> from =y to =m are ignored when setting -y.
>>>
>>> Cc: Masahiro Yamada <masahiroy@...nel.org>
>>> Signed-off-by: Matthias Maennich <maennich@...gle.com>
>>> ---
>>>  scripts/kconfig/merge_config.sh | 15 +++++++++++++++
>>>  1 file changed, 15 insertions(+)
>>
>>
>> Reviewed-by: Lee Jones <lee.jones@...aro.org>
>
>
> Any idea what's holding this up please?

Simply because I hate this script.


merge_config.sh itself is a bad hack.
I do not like to extend it further.

Not only this one.
I saw more people with
"hey, I came up with a new option for merge_config.sh"
to do whatever they like to do.

However, it might be too late anyway.

So, I can merge this patch if people believe
it is useful.

-- 
Best Regards
Masahiro Yamada